Warping spool



April 5, 1932. H. D. CLINTON WARPING SPOOL Filed May 16, 1928 INVENTOR. HmyD. 671771072 BY 2 i 2 r 75; ATTORNEKF.

Patented Apr; 1932v m-ran sES "ears NT oile Application filed May 16,

This invention relates to textile spools and bobbins and more particularly to those known as warping-spools for feeding yarn onto beam-cylinders or ball-warps preparatory to a weaving fabrics. It aims to provide spools of a construction adapted to special loading arrangement in high-speed warping operations.

The invention be best understood upon 1o furtherdescription with reference to the accompanying drawings wherein embodiments" thereof are illustrated in loading and in feeding positions:

In said drawings:

4 Fig. l is an elevational view of one form of spool embodying the invention represerited on a. winding spindle for yarn loading thereon, one of the spool heads and said spindle being shown partly in section;

Fi 2 is an end elevation of the spool, showing t e manner of securing and shielding the innermostend of yarn Wound thereon; Fig. 3 is a view representing a pair of the spools as arranged on a creel-rack for unin-v terrupted feed of yarn in ahig'h-speed warping operation;

Fig. dis a perspective view of a detail of the spool construction; and Fig. 5 is a fragmentary elevational repre- 39 sentation of a: modified form of spool on a winding spindle. In the illustrative embodiments, spools of conventional warper type are shown respectively comprising a hollow barrel 6 with heads 7 secured on thebarrelends. This barrel is usually formed of wood while the heads are formed preferably from hard vulcanized-fibre or other compositionresisting v breakage under rough usage conditions. The heads are rigidly fastened to the barrel by woodenbushmgs or plugs 8 which are formed with tapering head-portions driven compressively into notched central apertures provided in the heads, and with reduced glue-coated shank-portions fitting into receptive counterrecesses formed in the barrel ends as illustrated and described for example in my US. Patent No. 1,515,148dated November. 11, 1924. In this instance, the bushing or plug '8 at one end of the spool is left projecting some- 1928. Serial No. 278,222.

what beyond the outer face of the head instead of being trimmed ofi substantially flush with the head in conformity with the usual practice. (Note the difierence at opposite ends of the spool in Fig. 1) i The projecting part of said plug at one end is shown lathed to bottle-neck form with reduced portion 8 narrowly spacing an'jextremital flange or rim 8 thereof from the spool head. In efi'ect, the plug so formed provides a peripherally grooved axial extension of the spool barrel.

To the reduced portion or neck of the projecting plug, a slip-catch for yarn or thread represented by the clip 9 is secured. As said catch or clip accordingly lies between the spool head and the extremital flange or rim 8 of the plug, it is protected against loosening knocks and unintentional snagging of yarn or thread.

In the outer face of the head at said end of the spool, a narrow groove 10 is'shown extending tangentially of the projecting plug from a point substantially diametrically op: posite the aforesaid clip thereon to and over the. peripheral edge of the head, said groove being of a depth sufiicient merely to protectively receive a strand .of yarn in extension across the head to said plug.

Spools of 'the described construction may be loaded and used for "general purposes in the usual way while they arealso adapted to special loading and arrangement foriuninterrupted or magazine-feed of yarn inhighspeed warping operations wherein the yarn is. drawn from the spools in the direction of their axes without rotating the some; rather thanat right angles to the spool axes requiring rotation thereof under the pallet the yarn. I I

The-manner of loading for thid special purpose-is illustrated in Fig. 1, wherein a spool of described form is shown applied to a Wind- 7 ing spindle 11 so'that its end with projecting plug opposes the latters cup-shiped disc 11 on which the spool head rests o r-rotation with the spindle. A .travelerguide represented byfthe eyeleted" member12 is shown in the lower-position of'its movement up and down or back and are in parallel warper-machine (not shown).

relation to said spindle for evenly guiding a thread or strand of yarn onto the spool barrel during rotation with the spindle. From a supply bobbin (not shown), a strand of yarn 13 is represented passing through said traveleruide to and partly around the spool barrel, t ence across the inner side of the spool head to the groove 10 beginning at its peripheral edge, then over the edge and backwardly across the outer side of the head within said groove to and partly around the projected plug, where it is finally loop-engaged under the catch or clip 9 on the latter (see Fig. 2).

As thus extended over and secured to the outer side of the spool head, the yarn strand is held against slippage and is shielded within the spool while the latter is engaged on the spindle for drawing the yarn thereon through the traveler-guide. lVhen the spool has been filled with the yarn windings, the trailing end of the innermost winding thereon will nevertheless extend outwardly beyond the loaded barrel and upon disengagement from the slip-catch will be free for connectio with yarn on another spool.

In Fig. 8, a pair of the spools loaded as described are shown as arranged on a creelrack for continuous or magazine feed of the yarn in high-speed warping operations in which the yarn is drawn from the ends of the spools according to the novel method illustrated and described in my Patent No. 1,639,927 dated August 23, 1927, for Method and means for high speed warping. In said figure the spoolsare engaged over axis-pins 14 inclined to a common take-ofl eyelet 15 equi-spaced from the spool ends through which the feeding yarn strand is shown passing to and through a tensioning-device 16 between guide-eyelets 17 and from there to a In this arrangement, the trailing end of the yarn on the feedin spool is shown connected to the leading en of the yarn on the other or next supply spool, while the trailing end of the yarn on the latter is shown hanging for like connection with the leading end of yarn on a successive spool. As soon as the yarn on the feedin spool is exhausted, the feed uninterruptedly transfers to the other, and the emptied spool is then replaced by another loaded spool which is similarly connected to the continuing feed spool.

A plurality of the spools may be arranged and'successively connected in this manner, so that a continuous and uninterrupted supply of yarn will be assured during the entire warping operation.

The described magazine-feed arrangement of spools ispossible only when the innermost or trailing ends of the yarn thereon extend outwardly forfree connection with the leading end of yarn on otherspools, but it is not customary to load spools in this manner. Moreover, the ordinary warping spools are not adapted for loading in this way, and if attempt to do so were made, the loose end of the yarn would simply slip off the barrel with rotating pull, or fly wild and become entangled with the yarn feeding onto the spool. Breakage of'the yarn would then result either during the spool loading operation or in the warping-operation..

This invention provides a spool wherein the trailing end of the yarn may be fastened to the outside of the spool and within the spool body, so that it will remain taut and shielded from the winder mechanism during the loading operation, but may be quickl unfastened after the spool is loaded. Suc spools are of special advantage over the ordinary warping spools and the invention therefore supplies a distinct need in the art.

Referring now to Fig. 5, a modification is shown wherein the, projection oflfa'stening plug at an end or" the spool is eliminated and the slip-catch or clip foryarn isfixed the groove 10 is extended radially across the outer face and around the edge of the head. In this instance the trailing end of the yarn strand extending across the outer face of the head within the groove is simply looped 'under said pin and thereby held against slippage iromthe pull of the rotating spool during the loading operation. Said modification provides a spool adapted to the same purpose but allowing for a shorter length of yarn than in the form first described.

Obviously, spools adapted for loading with the trailing end of the yarn thereon extending out from the barrel may be made in various forms without departing from the spirit and scope of the invention, the essential purpose being to provide for shielding and fastening the yarn on the outer, side of the spool by meanswhich will not cause injury to the hand nor entangle and break the yarn when the spool is used for other purposes than herein described. Therefore, while certain restrictions are necessarily imposed, it is not -er side of one of the heads and mean's vmaintaining the yarn withinthe body of' said head where extended across the racethereof to said point of fasteningp barrel and a groove in the outer 2. In a spool comprising a barrel having heads on its ends and lugs securing the heads thereto, a circum erentially grooved extension of the plug at one end of the barrel having means thereon for catch-fastening the end of the innermost yarn winding on the barrel, and a groove in the outer side and edge of the head at said end of the barrel within which the yarn is received in extension thereacross to the point of fastening.

' 3. A spool com rising a barrel, heads on the ends of the arrel' and plugs securing said heads thereto, the plug at one end of the spool being formed with a bottle-neck extension projecting only slightly beyond the outer side of the head at that end, means on said extension-for fastening thereto the end of the innermost yarn windin on the face and peripheral edge of said head within which the yarn may lie in shielded extension thereacross to the point of. fastening.

4. In a spool embodying a barrel with heads on the ends thereof, means for fastening the end of the innermost winding of yarn on the barrel at the outer side of one of the heads and a groove in said one of the heads to receive such end within the body thereof where extended across its face to the point of fastening.

5. In a spool embodying a barrel with disc-like heads on the ends thereof, means for extending the trailing end of the innermost winding of yarn on the barrel outwardly across one of the heads to the outer side thereof without lying upon its face in-the line of draw thereacross and means on the outer side of the head for fastening said end accessible to handling along with the free end of the outermost winding after the spool has been fully loaded with the yarn windmgs.

6. In a spool embodying a barrel having flat disc-like heads on its ends, means for ex-' tending the innermost end of yarn windin s on the barrel transversely of one of the hea s to the outer side thereof without 1 'ngupon the face of the latter in the line 0 extension there'across and a slip-catch on the outer side of the head for fastening'said end thereto accessible to quick release. y

In testimony whereof I aifix my signature.

HARRY D. CLINTON. 

